python pylab绘制Sigmoid图像

from pylab import * t = arange(-60.0, 60.3, 0.1) s = 1/(1 + exp(-t)) ax = subplot(212) ax.plot(t,s) ax.axis([-40,40,0,1]) plt.xlabel('x') plt.ylabel('Sigmoid(x)') show()  

>>阅读原文<<